Since the absolute pressure of the brine would be 5 to 25 torr, cooling would only cut down on this vapor pressure by few to several torr which would not translate in a useful NPSH gain, hardly a fraction of one inch.
Luckily, some pumps out there work well with 1 to 2 feet of NPSH. Thus just...
Thanks roaling and MJC, your replies were useful.
As per the reference/data below what would be the difference between yielding and buckling for "flat end caps", or are they nearly one and the same due to the symmetry?
Thanks again,
Freon66
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Roger Cortesi (SM...
Thanks SteveBraune and kenvlach
The vacuum is almost 14.65 psig, not 0.05 psig (it is 0.05 psia)
The brine solution is chromate inhibited. -40 to 50 C are the extreme ends, normally it is 0 to 35 C. The brine is lithium bromide 50 to 60 wt% with 0.3% chromate.
No experience with how to...
Would appreciate to formula(s)/charts to measure minimum wall thickness for:
1) cylindrical shell (4 feet long), diameter 36"
2) flat plates/disks (to be used as ends) matching the cylinder OD (will be welded to shell ends).
Operating vacuum 0.05 psia
Material of construction SS304
flat...
Application: pumping LiBr solution to an absorption column at 0.1 psia. NPSHa available 1 to 2 feet. Target flow rate of brine 25 to 40 gpm. Any recommended pump type???
